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Physics, 23.06.2019 00:40
Asteel tube (k=50 w/mk) of inner and outer diameter di = 20mm and do=26mm, respectively, is used to transfer heat from hot gases flowing over the tube (h-hot = 200w/m2k) to cold water flowing through the tube (h-cold = 8000 w/m2k). what is the cold-side overall heat transfer coefficient uc? to enhance heat transfer 16 straight fins of rectangular profile are installed longitudinally along the outer surface of the tube. the fins are equally spaced around the circumference of the tube, each having a thickness of 2mm and a length of 15mm. what is the corresponding overall heat transfer coefficient uc? *solve for uc in both cases*
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Physics, 23.06.2019 10:00
With which of the following is the weak nuclear force associated? a.lightingb.nuclear decayc.ocean tidesd.stactic cling
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Physics, 23.06.2019 21:10
Aspring-loaded gun, fired vertically, shoots a marble 9.0 m straight up in the air. what is the marble's range if it is fired horizontally from 1.8 m above the ground?
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In the 1980s, the term picowave was used to describe food irradiation in order to overcome public re...
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